In the aircraft manufacturing industry, the use of composite materials such as Carbon Fiber Reinforced Plastics (CFRP) has increased to reduce structural weight and improve fuel efficiency. However, because of their anisotropic and layered structure, ...
In the aircraft manufacturing industry, the use of composite materials such as Carbon Fiber Reinforced Plastics (CFRP) has increased to reduce structural weight and improve fuel efficiency. However, because of their anisotropic and layered structure, composites are prone to defects such as delamination during drilling, which can degrade structural reliability and fatigue life. Accordingly, quantitative evaluation of drilling quality and the establishment of robust cutting conditions have become critical issues in aerospace manufacturing. In this paper, delamination during drilling of aircraft composite materials is predicted using a CNN-based artificial intelligence model, and optimal cutting conditions are identified via a Grid Search over candidate parameter combinations. Experimental results indicate that Feed Rate and drill geometry are the primary factors affecting drilling quality, and the proposed approach provides a practical AI-based decision-support framework for quality management and process optimization in composite machining.